I am working on a corporate Intranet that will be accessible from inside 
the network and also outside.  I am using NT Challenge Response to 
authenticate users against our domain.  The user accounts lie on a 
separate server then the web server, I am not sure if this makes a 
difference.  The code is set up in a way such that if you are accessing 
the Intranet from inside the building, it uses the direct path to the 
server so that it is faster (https://servername/Intranet) and when you 
are outside it uses the website name (https://www.jccap.org/Intranet).  I 
set up a group policy so that the Intranet site is listed in everyone's 
local intranet zone.  The problem I am having is that everyone running 
Windows XP is prompted to authenticate against the server name that the 
web server lies on.  Then when they type in their login information, it 
does not work.  It says they do not have enough privlidges or they cannot 
view the page.  As far as I can see they do have permissions on the 
directory and every page in it.  Can anyone help me out??